Ionis Pharmaceuticals IONS
NASDAQ IONS
$44.00 -0.65 (-1.46%)
At close: Oct 1, 2026 · 4:00 PM EDT

Ionis Pharmaceuticals (IONS) Shares Outstanding (2009 - 2026)

Updated

Ionis Pharmaceuticals (IONS) posted Shares Outstanding of 165.42 million for Q2 2026, up 3.9% from 159.14 million a year earlier and up 0.3% from the prior quarter.

Analysis

Ionis Pharmaceuticals (IONS) Shares Outstanding (2009 - 2026) Analysis & Trends

For FY2025, Ionis Pharmaceuticals' Shares Outstanding came in at 160.01 million, up 7.0% from FY2024.

  • Annual Shares Outstanding has increased for five consecutive years, with a five-year compound annual growth rate of 2.8% (FY2020 to FY2025).
  • In prior years, Ionis Pharmaceuticals' Shares Outstanding was 149.51 million in FY2024 (+4.4%), 143.19 million in FY2023 (+0.9%), 141.85 million in FY2022 (+0.6%) and 141.02 million in FY2021 (+1.0%).
  • The Q2 2026 figure stands as the highest quarterly Shares Outstanding in data going back to Q2 2009.
  • On a year-over-year basis, Shares Outstanding has increased in each of the last 22 quarters, with growth averaging 6.1% over the last eight quarters.
  • The year-over-year growth in Shares Outstanding has ranged between 0.6% (Q3 2022) and 9.1% (Q1 2025) over the last five years.
  • According to Business Quant data, Shares Outstanding for the three prior quarters was 164.87 million (Q1 2026), 160.01 million (Q4 2025) and 159.77 million (Q3 2025).
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Shares Outstanding (Qtr)
1 Johnson & Johnson 638.12 Bn 556.64 Bn 17.26 Bn 2.41 Bn
2 AbbVie 462.60 Bn 435.75 Bn 12.70 Bn 1.77 Bn
3 Merck 358.70 Bn 313.13 Bn 12.21 Bn 2.47 Bn
4 Novartis Ag 272.16 Bn 228.03 Bn 11.24 Bn 1.94 Bn
5 Astrazeneca 250.36 Bn 223.92 Bn 12.86 Bn 1.55 Bn
6 Amgen 227.87 Bn 183.27 Bn 7.24 Bn 540.00 Mn
7 Gilead Sciences 184.97 Bn 159.08 Bn 6.22 Bn 1.24 Bn
8 Pfizer 162.61 Bn 109.56 Bn 10.94 Bn 5.70 Bn
9 Vertex Pharmaceuticals 132.45 Bn 104.46 Bn 2.84 Bn 253.70 Mn
10 Ionis Pharmaceuticals 7.40 Bn -1.50 Bn 265.21 Mn 165.42 Mn
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 165.42 Mn
Mar 31, 2026 164.87 Mn
Dec 31, 2025 160.01 Mn
Sep 30, 2025 159.77 Mn
Jun 30, 2025 159.14 Mn
Mar 31, 2025 158.74 Mn
Dec 31, 2024 149.51 Mn
Sep 30, 2024 148.59 Mn
Jun 30, 2024 145.96 Mn
Mar 31, 2024 145.54 Mn
Dec 31, 2023 143.19 Mn
Sep 30, 2023 143.32 Mn
Jun 30, 2023 143.10 Mn
Mar 31, 2023 142.74 Mn
Dec 31, 2022 141.85 Mn
Sep 30, 2022 141.95 Mn
Jun 30, 2022 141.79 Mn
Mar 31, 2022 141.60 Mn
Dec 31, 2021 141.02 Mn
Sep 30, 2021 141.14 Mn
API Access

Ionis Pharmaceuticals Shares Outstanding API

Pull this series into your own models, spreadsheets and apps with the Business Quant Historical Metrics API. The request below matches the chart above — change the frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.

https://data.businessquant.com/historic?slug=shares-outstanding&ticker=IONS&period=max&api_key=YOUR_API_KEY